one: used of a single unit or thing; not two or more; "`ane' is Scottish"

one: the smallest whole number or a numeral representing this number; "he has the one but will need a two and three to go with it"; "they had lunch at one"

"?1" (read "Infinity Ichi"; translated as "Infinity 1") is Do As Infinity's twenty-first single, released on June 17, 2009. The band had disbanded in September 2005, but reformed three years later in September 2008.

This is a 1 Micron filter for the Fein vacuum, which allows for clean-up of smaller particulate dust such as drywall and sheet rock. The filter mounts onto the bottom of the vacuum head on the float valve cage with the turn screw and flange. This filter must be used with a paper dust bag. Do not use this filter with the cloth bag that comes with the vacuum. This filter must be used with the TII3002 mounting flange and the TII3001 mounting screw. If you are ordering the filter make sure you have the flange and screw also.

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Infrared telescope

Caltech Infrared Telescope

Astronomers and students at the Caltech Institute of Technology built this reflecting telescope in the early 1960s to survey the sky for infrared radiation sources. Its 1.6 meter (62-inch) parabolic mirror was made using a technique called spin casting. Epoxy resin was poured onto a rapidly rotating dish and spun into a perfectly parabolic shape. After the resin hardened, an aluminum coating was applied to provide a reflective surface.

The telescope could survey about 75 percent of the sky in a year, and it had an electromechanical system to filter out background radiation. Data were collected on strip charts. Astronomers inspected the charts to locate infrared sources, then they keyed that data onto paper tape for computer processing. After its installment at Mount Wilson Observatory, the telescope was used to complete the first 2.2-micron all-sky survey.

Grease Trip

After doing a brief interview with a local paper about grease Idecided to filter another 21 gallons and get ready for a trip toAlbuquerque. I am going to heat the grease for one hour beforepassing it through a 10 micron racor filter. I'd really like to havesome 5 or even 1 micron filters to clean the fuel further.

1 micron filter paper

These gridded membrane filters are made of cellulose nitrate, a material which ensures effective retention with high flow rates and optimum colony growth. Sterile Filters are individually packed and sterile to avoid the possibility of contamination. These filters conform to EPA, having filter identification and lot number printed on each individual envelope. The certificate included in every package documents the quality assurance tests as well as the compliance of the 0.45 µm membrane filter with ISO 7704. Non-sterile filters are not individually packed. They are used for particle testing, microscopy and microbiology.